Coffee machine



FIG. 1 is a top, front, left side perspective view of a coffee machine showing my new design;

FIG. 2 is a right side view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a bottom view thereof;

FIG. 5 is a front view thereof;

FIG. 6 is a rear view thereof;

FIG. 7 is a left side view thereof;

FIG. 8 is a top, front, left side perspective view of a coffee machine showing a second embodiment of my new design;

FIG. 9 is a right side view thereof;

FIG. 10 is a top view thereof;

FIG. 11 is a bottom view thereof;

FIG. 12 is a front view thereof;

FIG. 13 is a rear view thereof;

FIG. 14 is a left side view thereof;

FIG. 15 is a top, front, left side perspective view of a coffee machine showing a third embodiment of my new design;

FIG. 16 is a right side view thereof;

FIG. 17 is a top view thereof;

FIG. 18 is a bottom view thereof;

FIG. 19 is a front view thereof;

FIG. 20 is a rear view thereof; and,

FIG. 21 is a top, front, left side perspective view of a coffee machine showing a fourth embodiment of my new design. 

The ornamental design for coffee machine, as shown. 